Like many of the Australian houses I feature here the Trellis House by West Australian design firm Fringe Architects involves an extension to a late 19th/early 20th century building. These inner city homes are small, often dark and not at all suited to our modern way of life. Their location in desirable inner city suburbs will see owners extend them to embrace more space, the open plan living we all desire these days and an almost culturally ingrained need for Australians to open the indoors to the out. This Perth home sees the marriage of old and new, modern with mid century, polished concrete, exposed brick and a set of pivoting doors that would not be out of place in a Palm Springs mid century pad.